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Jurnal Ilmu Dasar

JID
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Published by Universitas Jember

ISSN : 24425613 EISSN : - DOI : https://doi.org/10.19184/jid.v24i2.36657

Core Subject : Education, Engineering,

Control & Systems Engineering Mathematics

Jurnal ILMU DASAR (JID) is a national peer-reviewed and open access journal that publishes research papers encompasses all aspects of natural sciences including Mathematics, Physics, Chemistry and Biology. JID publishes 2 issues in 1 volume per year. First published, volume 1 issue 1, in January 2000 and avalaible in electronically since 2012 with ISSN 1411-5735 (Print) and avalaible in electronically since 2012 with ISSN 2442-5613 (online). Jurnal ILMU DASAR is accredited SINTA 3 by the Ministry of Education, Culture, Research, and Technology of the Republic of Indonesia (Kemendibukristek) No. 152/E/KPT/2023 (September 25, 2023), Ministry of Research, Technology and Higher Education of the Republic of Indonesia (RISTEKDIKTI), No. 200/M/KPT/2020 (December. 23, 2020). All accepted manuscripts will be published worldwide JID has been indexed in DOAJ, Dimension, OCLC WorldCat, PKP Index, Crossref, Google Scholar, Base, Garuda, and OneSearch. JID have been collaborated in KOBI-ID (Konsorsium Biologi Indonesia) and HKI (Himpunan Kimia Indonesia) since 2017.

Arjuna Subject : Matematika - Kontrol dan Optimasi

Articles 10 Documents

Search results for , issue "Vol 17 No 2 (2016)" : 10 Documents clear

Synthesis of Compounds Acetyl Vanilat as Analgesic Compound Components Damayanti Iskandar; Susy Yunita Prabawati
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Acetyl vanillate was synthesized to become an analgesic compound was conducted in two stages.The first stage is oxidation vanillin using Tollens reagent. The result of the oxidation wascharacterized by melting point and FTIR. The second stage, vanillic acid was acetylated usingacetic acid anhydrous under two conditions, that are acid and base using H2SO4 and NaOH 10%,respectively. Two difference products from those processes were characterized using FTIR and1H-NMR. The result of the melting point vanillic acid test showed 204°C and the standard is210°C. Vanilline was successfully oxidized, based on comparison FTIR spectra between vanillineand its precursor that showed no functional group of C-H aldehyde at 2,700-2,800 cm-1. Thecharacteristics FTIR spectra under base conditions showed no absorption of functional group ‒OHthat substituted by an acetyl group. So that, the base catalyst indicated no product of the expectedcompound. The product under acidic compounds have the characteristic yellow crystals with amelting point of 130°C. Characteristics of FTIR showed no width absorption at wave number 3400cm-1 and evidenced by 1H-NMR spectra. Shift peak at 2.342 ppm was an absorption acetylcompounds. It was concluded that acetylation of acetyl vanillate compounds under acidicconditions to produce the expected product.Keywords: vanilin, vanilic acid, acetylation

Graphite as A Hydrogen Storage in Fuel Cell System: Computational Material Study for Renewable Energy Rahmat Gunawan; Cynthia Linaya Radiman; Muhamad Abdulkadir Martoprawiro; Hermawan K. Dipojono
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

The Hydrogen storage based-graphite materials have been investigated theoretically via Density Functional Theory (DFT) approach. The native graphite was compared to the modified graphite, namely the intercalation graphite (GICs, graphite intercalated compounds). Here the GICs was intercalated by alkali metals (Li, Na and K). The electronic structures, energetics and atomic orbital contributions of hydrogen-graphite system, GICs, and hydrogen-GICs were studied by calculation approach of gradient corrected PBE (Perdew-Burke-Ernzerhof) for recovery of exchange-correlation energy. The calculation was supported by using basis set of the plane waves whereas the computation of electron-core by using Ultrasoft Vanderbilt pseudopotential. The computational calculation provides four main studies i.e. molecular geometry relaxation, determination of electronic bands structure of energy, energy state density (DOS) and atomic orbital contribution by charge density differences.Keywords: Density Functional Theory, hydrogen gas, graphite intercalated material

Utilization of Sludge from Sidoarjo for Synthesis of Microball Photocatalist of Fe2O3 zeolit-chitosan as Fermented Soybean Waste-Degrading Agent Erlaningtias Hutami Ardana Putri; Dwi Fungky Ratnasari; Anugerah Dewi Harumsari; Vivid Ayu Lestari; Sri Wardhani
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

The sludge from sidoarjo have high Fe2O3 content of about 62,19%. This content have potential to prepare as photocatalyst for degraded fermented soybean waste by support sunlight. Synthesis of Fe2O3 zeolit-chitosan photocatalyst was carried out by impregnation into zeolite. Adding chitosan into the mixture of Fe2O3 zeolite then cast to be granules. Characterization of photocatalyst obtained using spectrophotometer IR, XRD, and DRS. Microball photocatalyst of Fe2O3 zeolit-chitosan with variation of pH 4, 6, and 8 then were done test of degradation performance by sunlight during 4 hours. As the result, the optimum pH of photocatalyast via COD test is pH 8. The higher base of photocatalyst, decreasing of degradation is higher.Keywords: degradation, Fe2O3, fermented soybean waste, sludge.

Optimization of Reactions Opening Cyclic Ring of Pentose Sugar Derivatives through Dithioacetalisation Reactions Nuriman Nuriman
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Ring-opening reaction of cyclic pentose sugar derivatives of 2,3,4-Tri-O-benzyl- D-xylopyranoseto derivatives of acyclic 2,3,4-Tri-O-benzyl-D-xylose-Dipropyl dithioacetal been done andoptimized. The reaction was performed using a precursor propanathiol with concentrated HCl.Optimization of reaction conditions was conducted by varying propanathiol concentration,reaction time and optimization of the reaction temperature which the product ioslation conductedusing a variety of solvents. The results of this reaction was obtained 2,3,4-Tri-O-benzyl- Dxylose-Dipropyl dithioacetal with the highest randemen (97%), better than the previous reactionthrough propanathiol excessive concentration, reaction time of 2 hours and the temperature of thereaction at room temperature. Product Isolations using solvent dikloromathane more effectivethan the use of other organic solvents. Purification of reaction products is done through a columnchromatography using a solvent mixture of 20% ethyl acetate-hexane.Keywords: Optimization, Cyclic Ring, Dithioasetalisasi

Effect of Addition of Monosodium Glutamate (MSG) on Coagulation Basin to Characteristics of Cellulose Acetate Membranes Siti Rofiqoh; Dwi Indarti; Bambang Piluharto
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

The aim of recearch is study the effect of MSG in coagulation basin on cellulose acetat membranes properties. It was preparated by phase inversion technique. As the result showed that the higher the concentration of MSG in coagulation basin, which is character of membrane permeability coefficients and lower water flux. Dextran rejection of 11, 40, 100-200, and 500 kDa increased. The morphology analysis has shown that sub layer membranes structure with 2% MSG addition more uniform than 0,5% MSG addition.Keywords: cellulose acetat, phase inversion, MSG, coagulation basin

Demonstration of Magneto-Impedance Sensor on Multilayer Coil [Ni80Fe20/Cu]N Result of Electro-Deposition Ahmad Asrori Nahrun; B. Anggit Wicaksono; Ismail Ismail; Nuryani Nuryani; Budi Purnama
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Demonstration performance magneto - impedance sensor on the coil wire multilayer [ Ni80Fe20/Cu ]N electro - deposition results presented in this paper . At first multilayer [ Ni80Fe20/Cu ]N deposited on a Cu wire into a coil and then the sample is modified by the number of windings 2 and 4. The results of impedance measurements under the influence of the magnetic field shows that the magneto - impedance ratio increases with the increase in the number of windings. Magneto - impedance ratio changed from 15 % to 17.4% with a change in the number of windings of 2 to 4. The fact these results allegedly contributed their self-inductance value of this magnitude greater contribution to the increase in the number of windings.Keywords: Magneto - impedance sensor, electro-deposition , multilayer coils [Ni80Fe20/Cu]N

Synthesis and Characterization Thin Film TiO2 as Degrading Procion Red MX-8B Textile Dye Achmad Sholikhudin Almu’minin; Tanti Haryati; Tri Mulyono
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

TiO2 photocatalyst is one of type semiconductor that is often used in textile dyes photodegradationmethod which characteristics are influenced by the size of crytal. Synthesis of TiO2 photocatalystscan be done by several methods, one using the sol-gel method. By treating variations in thecomposition of the reactans and treatment of synthesis in sol-gel method, the size of the TiO2crystals can be controlled to produced the desired characteristics. This study has been made ofTiO2 photocatalysts in the form of thin-layer films using sol-gel method with annealing process ata temperature of 550oC. This study examines the effect of the concentration of precursor TTIP andhydrolysis ratio of the crystal structure, crystallinity, the band gap energy, and photocatalystactivity to degrade procion red mx-8b dye compound. The result obtained is known that the crystalsynthesized has structure of TiO2 anatase. Value crystal size, crystallinity, the band gap energy,and percent degradation has a value that depends on the composition of TTIP concentration andhydrolysis ratio. Although the results showed morphology of TiO2 particle indivcate that large sizeand crystallinity value is still low, but that is interesting each of the measurement results mutuallysupport each other.Keywords: photocatalyst, TiO2, Sol-gel, TTIP concentration, hydrolysis ratio

Attribute Geometrical Seismic for Fault Identifiction on Canada Exploration Field Reni Agustiani; Puguh Hiskiawan; Rano Rano
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

It has been performed data interpretation of 3D seismic data and drilling field exploration wellsBasin Nova ScotiaKanada to know structure fault on the field Missisauga Formation. Seismic dataused is 601 inline, crossline 482, and the data used drilling wells are two wells which there is a loggamma ray, sonic logs and log RHOB. Interpretation is done the analysis of the map in thestructure of time and analysis of seismic attribute maps based on the geometrical attribute serves todetermine their structure or structural faults of the data volume 3D. Based on the time structuremap well known that first well is in the region heights and second wells is in low region. Based oninterpretation of the map attributes known three faults are two major fault and one minor fault.Two faults are in the East Sea drilling wells and a small fracture that was on its western side. Thethree fults are directed from Northwest to the Southeast. Fault is expected to serve as ahydrocarbon trap in the area that will be accumulated in drilling wells. Keywords: geometrical attribute, Seismic data, drilling wells, time structure map.

Synthesis and Characterization of Hydrogels based on Graft Copolymerization of Acrylamide on Chitin resulted from Enzymatic Isolation of Shrimp Waste Tia Lestari; Achmad Sjaifullah; Agung Budi Santoso
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Shrimp waste containing chitin 15-20%. Chitin can be isolated enzymatically by using proteaseenzymes derived from the waste itself. Waste of shrimp marinated in 1M H2SO4 for 10 days at pH1-2 and do control the pH and concentration of N-total every 24 hours. So that, this process canreduce the use of chemicals and environmental pollution. Enzymatic chitin obtained ash content1.789% and 5.322% of N-total. Results of IR showed characteristic functional groups of chitin areOH 3390.5 cm-1, NH (secondary amide) 3348.71 cm-1, C = O 1648.20 cm-1, C-N at 1313.96 cm-1,C-O 1115, 28 cm-1. Chitin is dissolved in 8% NaOH / Urea 4% for 36 hours (-20oC). Hydrogelsmade with a ratio (1: 6); (1: 8); (1:16); (1:24) w / w. The results showed the increasing amount ofacrylamide monomer, the greater the value% graft and absorption of water. Enzymatic chitinhydrogel showed the maximum value % graft is 2492.073%; and water absorption 1.794 g / g. IRhydrogel results indicate primary amide N-H stretching of acrylamide at 3349.77 and 3202.88 cm-1, C = O 1662.03 cm-1Keywords: hydrogel, chitin, acrylamide, graft copolymerization

Molecular Dynamics Study for Inhibition of Iron Corrosion in High-Temperature Liquid PbBi with Nobel Gas Inhibitors Umi Sa’adah; Artoto Arkundato; Lutfi Rohman
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Molecular dynamics is a popular method to observe the movement of interacting molecules. In this study molecular dynamics method was used to observe the phenomenon of iron corrosion and analyze effect of noble gases as a corrosion inhibitor for iron in liquid metal PbBi. Physical quantities are evaluated from the results of this study including: Mean Square Displacement (MSD), the diffusion coefficient, and for the crystal structure is visualized using Ovito program. The ron is placed in the middle high temperature liquid PbBi, the noble gases is injected into the liquid metal. Based on the three kinds of the noble gases (helium, neon, and argon) thhat injected into the molten metal PbBi, it obtained that Argon is the most effective in inhibiting the corrosion of iron. Argon is able to reduce the corrosion rate of 80.29% iron for temperature of 1023K. One reason to use the noble gas because these gases are difficult to react with other elements. Keywords: Molecular Dynamics, Corrosion in Liquid metals, Nobel Gases, Inhibitors

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Jawa timur

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Home Page

OAI Link

Editorial Team

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Contact Name Solikhatun

Contact Email solikhatun@ugm.ac.id

Phone +62331334293

Journal Mail Official jid@unej.ac.id

Editorial Address Jl. Kalimantan 37 Kampus Tegalboto Jember 68121 Telp. 62 331 334293 Fax. 62 331 330225

Location Kab. jember, Jawa timur INDONESIA

Abstract

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Abstract

Contact Name
Solikhatun

Contact Email
solikhatun@ugm.ac.id

Phone
+62331334293

Journal Mail Official
jid@unej.ac.id

Editorial Address
Jl. Kalimantan 37 Kampus Tegalboto Jember 68121 Telp. 62 331 334293 Fax. 62 331 330225

Location
Kab. jember,

Jawa timur

INDONESIA